Shatner's Bassoon are a collection of the latest young musicians to emerge from Leeds in the wake of Trio VD, Roller Trio and Matthew Bourne. The sextet mixes sax, guitar, raw electronics, percussion and a few children's toys and cassette tapes. They often develop pieces in lengthy free-improv workouts, and sometimes deploy a taut ensemble sound recalling Tim Berne. The surreal track titles are worthy of Django Bates, some of the tenor-sax blasting might even make Peter Brötzmann jump, and an appetite for deadpan surrealism occasionally invokes a 21st-century noise-mashing Bonzo Dog band. Electronic bleeps and Wurlitzer organ noises get blown away by sax blasts, and wistfully romantic ballad themes develop over soft synth strings, before scuttling guitar improvisations wrestle with free-tenor eruptions. Sometimes Shatner's Bassoon are knowingly jazzy, sometimes they switch from bold melodic ideas to demonic garglings and cacklings, or what sounds like a monkey eating cornflakes overlaid by cool Fender Rhodes licks. It's all pretty out there, and maybe too much of a work in progress for those of delicate dispositions. But work in progress is what this kind of music-making is all about.